Kitauji High School Concert Band is preparing their parts for the ensemble, but some students are fooling around when they should be practicing.

Starting this year, the band holds auditions for members participating in the competition. First-year Hazuki has a chance, too. The bass section does everything they can to encourage her.

The band suspects Taki played favorites in choosing Reina in the auditions. Noticing the band's rising distrust of Taki and Reina, he makes a proposal.

The 10 members of the concert band club who failed Taki's audition form "Team Monaka" to support the club members participating in the Kyoto Concert Band competition. Even as they support the performers, they continue to hone their playing, and make monaka-shaped good-luck charms to hand out to their club mates before the competition. Although they didn't play in the competition, they still had things they had to do. But on the day of the competition, the members on their way to the concert hall receive a shocking message! This is Team Monaka's hot summer story.

Kumiko and her buddies head to the pool for one last breath of freedom before their grueling concert band training. There, Nozomi reveals some of what had happened the year before.

It's the school festival at Kitauji High School. Kumiko's sister insists on quitting college, while Taki reveals some things about his past with his wife.

Taki's deadline for Asuka draws near. She refuses to admit that she wants, more than anyone, to compete in the Nationals.

With the competition over and the third-years graduating, Kumiko is left to sort through her feelings: Is it a love of concert band, of the euphonium, or of something else?